THE CANADIAN ENTOMOLOGIST. 107 



I desire in closing to call attention to one locality near this city which 

 is, it seems to me, a remarkably productive one, and that is the vicinity of 

 Lamberton Lake. Upon one day last summer, July 14th, I observed 

 there 34 species, in a tract less than a mile in length : — Dan. archippus, 

 Arg. aphrodite, alcestis, myrina, bellona, Mel. phaeton, Phyc. nycteis 

 (worn), tharos, Grapta comma var. dry as, progne, Van. antiopa, Lim, 

 Ursula, disippus (worn), Neon, canthus, eurytris, Sat. nephele, Cat. 

 boreal is, Thecla acadica, edwardsii, calanus, Chrys. hypophlceas, epix- 

 authe, Pier, rapce, Col. philodice, Pap. asterias (one), Thym. poweshiek, 

 Pam. peckius, cemes, pontiac, egeremet, mystic, delaware, manataaqua, 

 and Nis. ice/us (worn). A very long list, it seems to me, for one day in 

 one locality. 



TRYPHON FLAVIFRONS, N. S. 



BY REV. THOMAS W. FYLES, F. L. S., SOUTH QUEBEC. 



Antennae, filiform, brown ; number of joints, twenty-seven ; scape^ 

 large, ovate, pale yellow beneath. Eyes naked, large and prominent, 

 dark rosy brown. Clypeus, labrum, mandibles and palpi pale yellow. 

 The lower portions of the epicranium are of the same colour. The occiput 

 is black, smooth and glossy. Mesothorax highly convex, black, sparsely 

 set with short, pale-brown, retrorse hairs. Scutellum elevated. Tegulae 

 yellow. The under parts of thorax amber-coloured, as are also the legs, 

 with the exception of the tarsi and parts of the tibiae of the hindmost 

 pair, which are brown. 



Wings hyaline. Costal and sub-costal nervures coalesce : stigma 

 large ; basal nervure much curved inwardly ; the second transverse 

 cubital nervure wanting ; third submarginal cell large ; second transverse 

 cubital nervure short and straight ; recurrent nerves straight and parallel ; 

 second discoidal cell rather small. 



Abdomen long, flattened, sessile, black above, yellow beneath. Ovi- 

 positor black, short and straight, the case set with black bristles beneath. 



Length of body, three-tenths of an inch, and of antennae two-tenths. 

 Expanse of wings, four-tenths. The fly makes its appearance in August. 



Described from six specimens obtained from Nematus larvae that had 

 fed on a species of poplar (P. nolesti) imported from Russia, and that 

 had gone into cocoon. 



